APA-čujuhus (7. p.)
Wolf, H., & Polzenhagen, F. (2009). World Englishes: A cognitive sociolinguistic approach. Mouton de Gruyter.
Chicago-čujuhus (17. p.)
Wolf, Hans-Georg, juo Frank Polzenhagen. World Englishes: A Cognitive Sociolinguistic Approach. Berlin ; New York: Mouton de Gruyter, 2009.
MLA-čujuhus (9. p.)
Wolf, Hans-Georg, juo Frank Polzenhagen. World Englishes: A Cognitive Sociolinguistic Approach. Mouton de Gruyter, 2009.
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